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    Question

    When the bus moves at 3/4 of its usual speed, it is 20

    minutes late. What is its usual time to cover the journey? 
    A 1 hours Correct Answer Incorrect Answer
    B 4 hours Correct Answer Incorrect Answer
    C 1.5 hours Correct Answer Incorrect Answer
    D 3 hours Correct Answer Incorrect Answer

    Solution

    ATQ, Let the usual time be T hours. At 3/4 of its usual speed, the time taken is 4/3 T.

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